Jefferson b



(No Model.)

J. B. BAKER.

Pipe.

No. 235,063. Patented Dec. 7,1880.

FIG 1 FIG 2 WITNESSES 0% INVENTOR 1 6. Hair gm mm UNiTED STATES PATENTFries.

JEFFERSON B. BAKER, OF NEW ALMADEN, CALIFORNIA, ASSIGNDR OF TVVO-THIRDSTO JAMES B. RANDAL AND GILES E. MGDOUGALL, OF SAME PLACE, ONE-THIRD TOEACH.

PIPE.

SPECIFICATION forming part of Letters Patent No. 235,063, dated December7, 1880.

Application filed J nly 3, 1880. (No model.)

To all whom it may concern:

Be it known that I, JEFFERSON B. BAKER, of New Almaden, in the county ofSanta Clara and State of Ualifornia, have invented an Improved Pipe, ofwhich the following is a specification.

My inven tion relates to certain improvements in the use of material andthe construction of flues, tubes, or pipes for conveying steam, gases,acids, and fluids, and carrying and condensing vapors or volatileproducts of quicksilver or other metals, minerals, and substances,however the same may be produced; and the objects of my improvements areto provide a structure of wood, of any desired length and dimensions,having, as a conveyer for liquids, acids, and gases, all the advantagesof a pipe or tube made of metal or other material in regard to solidity,simplicity, and resistance to inside or outside pressure, while it canreadily be used forla condenser of quicksilvervapors or other volatileproducts, its efliciency for cooling being increased by the wellknownmethod of running water over the outer surface, all of whichisaccomplished at much less cost for the first installment and subsequentrepairs than is possible in pipes manufactured in any other manner. Thetube will also be found useful for sewer-pipe, as it is water and gastight and perfectly smooth inside. Access can be readily had to theinterior for any desired purpose by man-holes or otherwise, and anysection can be cheaply repaired or replaced. For acids, gases, or fluidsinjurious to metals it has proved of great value. No iron, nails, orother metallic substances are employed in the flue itself, which can betightened whenever required by the clamps on its exterior.

Referring to the accompanying drawings, Figure l is a side elevation,and Fig. 2 an end view, of my pipe.

Similar letters refer to similar parts th roughout the views.

The pipe or flue A is constructed rectangular in form, with its foursides convex or bulging, the whole being supported and sustained byoutside clamps and braces covering meeting joints, as shown. It is madedouble or with two layers of tougued and grooved stufl' or flooring, soarranged as to break joints longitudinally and transversely throughoutthe entire inner and outer circumference.

Each corner or angle B is of one piece, having two sides double rabbetedlongitudinally, of which one edge is provided with a tongue, a, and theother with a groove, b, so as to receive the corresponding tongue andgroove upon the edge of the strips adjoining at each side. The stripsare also made with a tongue and groove, 0 d, as shown, and arranged sothat the outside strips, e, will lap over and cover the inside joints.

In constructing my pipe I use the clamps U, of which the inner sides aremade concave to correspond with the convex sides of the pipe. They areplaced at a suitable distance apart with the keys and overhead timbersdisplaced, in which position the pipe may be constructed by first layingthe bottom portion and then building up the sides, after which the roofor top portion is put in place by using the inner supporting'braces, h,having the same curvature as the roof and springing in the last stripsin each layer in their order. Then the top or upper portion of the clampor brace is joined with the uprights thereof, (after which the brace Itcan be removed, if desired,) and the keys f and the rods 9 are adjustedso as to rigidly clamp and hold firmly the whole structure againstinside and outside pressure and leakage.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1S

1. A pipe, flue, or tube to hold, convey, or condense liquids, gases,acids, and volatile substances, constructed of a double series oftongued-and-grooved strips of wood united so that all meeting joints arecovered through every series or layer at any given point, substantiallyas herein specified.

2. In the construction of wooden pipes, flues, or tubes, the corners orangles B, formed of a single piece having double-rabbeted sides, 5

substantially in the manner herein set forth.

3. The combination and arrangement of a, have hereunto set my hand andseal this 12th wooden flue, pipe, or tube, A, composed of day of May,1880.

strips of wood united as described, and secured by clamp (J, keys f, androds g, operat- JEFFERSON BAKER ing in the manner substantially asherein set Witnesses: forth, and for the purposes specified. R. BURNETTSMITH,

In testimony that; I claim the foregoing I ROB. B. BULMORE.

